{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZJVFRGXWTLRDX4SWOQFL7EBNMQ","short_pith_number":"pith:ZJVFRGXW","canonical_record":{"source":{"id":"1907.11395","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-07-26T06:38:26Z","cross_cats_sorted":[],"title_canon_sha256":"8d80625a07678e9c925bb9f0032011a4d56894985e2ba1884a81abe4ccfee292","abstract_canon_sha256":"fac30feb87ca61064dfbd1bcfdf83dc4aa76eb7ce4fe5bef19d4c1067092a51e"},"schema_version":"1.0"},"canonical_sha256":"ca6a589af69ae23bf256740abf902d64293976f09c1e7dd3b8df9fac9044e4d1","source":{"kind":"arxiv","id":"1907.11395","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.11395","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"arxiv_version","alias_value":"1907.11395v1","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.11395","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"pith_short_12","alias_value":"ZJVFRGXWTLRD","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZJVFRGXWTLRDX4SW","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZJVFRGXW","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZJVFRGXWTLRDX4SWOQFL7EBNMQ","target":"record","payload":{"canonical_record":{"source":{"id":"1907.11395","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-07-26T06:38:26Z","cross_cats_sorted":[],"title_canon_sha256":"8d80625a07678e9c925bb9f0032011a4d56894985e2ba1884a81abe4ccfee292","abstract_canon_sha256":"fac30feb87ca61064dfbd1bcfdf83dc4aa76eb7ce4fe5bef19d4c1067092a51e"},"schema_version":"1.0"},"canonical_sha256":"ca6a589af69ae23bf256740abf902d64293976f09c1e7dd3b8df9fac9044e4d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:29.212973Z","signature_b64":"kmAQN2qaNQOQ0pV7AFyOWMLHQ1aGiYSEJmybGGjCsJxXsSgpL4l0E/q0NBCvyCb3ZOh/7iHlXi3U897HxmFgDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca6a589af69ae23bf256740abf902d64293976f09c1e7dd3b8df9fac9044e4d1","last_reissued_at":"2026-05-17T23:39:29.212336Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:29.212336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.11395","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:39:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RT5U5MKfnilT3ZWxL7gdg8xaRUAiCUBbK8mqLA2EFJZ/EzA2NNN6rigpqrVB3gzpSha04nVoZyj+MtZNVv8SBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:11:08.618867Z"},"content_sha256":"0d7e7bd8ea5008b9682695bcee77b8a11fcc94d737ff6d28e1b826470842473b","schema_version":"1.0","event_id":"sha256:0d7e7bd8ea5008b9682695bcee77b8a11fcc94d737ff6d28e1b826470842473b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZJVFRGXWTLRDX4SWOQFL7EBNMQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Frequency Modulation and Voltage Locking of the Voltage Controlled Spin Oscillators (VCSOs)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Deming Zhang, Hao-Hsuan Chen, Lang Zeng, Mingzhi Long, Tianqi Gao, Weisheng Zhao, Youguang Zhang","submitted_at":"2019-07-26T06:38:26Z","abstract_excerpt":"The oscillating frequency of typical Spin Torque Nano Oscillators (STNOs) can be modulated by injected DC current or bias magnetic field. And phase locking of STNOs to an external Radio Frequency (RF) signal can be imposed by AC current or RF bias magnetic field. However, in this study, we have proposed a Voltage Controlled Spin Oscillators (VCSOs) by introducing Voltage Controlled Magnetic Anisotropy (VCMA) effect. The oscillating frequency of VCSOs can be modulated by VCMA voltage as well as injected DC current. Furthermore, we have shown a novel locking mechanism caused by AC VCMA voltage. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.11395","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:39:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ivcR00kyAyJT9rv0JwKszbW7kfVZI9Eqmds/xa87zzrxSXNmd37JGPYAfKmD7Ryiu3WJEWq3mznvHh7ZuyJhCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:11:08.619462Z"},"content_sha256":"ad408e36fe4a0954e491fec05ca8b51d2b667d9d0cd12e6255aa7b644a638c1f","schema_version":"1.0","event_id":"sha256:ad408e36fe4a0954e491fec05ca8b51d2b667d9d0cd12e6255aa7b644a638c1f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZJVFRGXWTLRDX4SWOQFL7EBNMQ/bundle.json","state_url":"https://pith.science/pith/ZJVFRGXWTLRDX4SWOQFL7EBNMQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZJVFRGXWTLRDX4SWOQFL7EBNMQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-29T20:11:08Z","links":{"resolver":"https://pith.science/pith/ZJVFRGXWTLRDX4SWOQFL7EBNMQ","bundle":"https://pith.science/pith/ZJVFRGXWTLRDX4SWOQFL7EBNMQ/bundle.json","state":"https://pith.science/pith/ZJVFRGXWTLRDX4SWOQFL7EBNMQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZJVFRGXWTLRDX4SWOQFL7EBNMQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZJVFRGXWTLRDX4SWOQFL7EBNMQ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"fac30feb87ca61064dfbd1bcfdf83dc4aa76eb7ce4fe5bef19d4c1067092a51e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-07-26T06:38:26Z","title_canon_sha256":"8d80625a07678e9c925bb9f0032011a4d56894985e2ba1884a81abe4ccfee292"},"schema_version":"1.0","source":{"id":"1907.11395","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.11395","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"arxiv_version","alias_value":"1907.11395v1","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.11395","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"pith_short_12","alias_value":"ZJVFRGXWTLRD","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZJVFRGXWTLRDX4SW","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZJVFRGXW","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:ad408e36fe4a0954e491fec05ca8b51d2b667d9d0cd12e6255aa7b644a638c1f","target":"graph","created_at":"2026-05-17T23:39:29Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The oscillating frequency of typical Spin Torque Nano Oscillators (STNOs) can be modulated by injected DC current or bias magnetic field. And phase locking of STNOs to an external Radio Frequency (RF) signal can be imposed by AC current or RF bias magnetic field. However, in this study, we have proposed a Voltage Controlled Spin Oscillators (VCSOs) by introducing Voltage Controlled Magnetic Anisotropy (VCMA) effect. The oscillating frequency of VCSOs can be modulated by VCMA voltage as well as injected DC current. Furthermore, we have shown a novel locking mechanism caused by AC VCMA voltage. ","authors_text":"Deming Zhang, Hao-Hsuan Chen, Lang Zeng, Mingzhi Long, Tianqi Gao, Weisheng Zhao, Youguang Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-07-26T06:38:26Z","title":"Frequency Modulation and Voltage Locking of the Voltage Controlled Spin Oscillators (VCSOs)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.11395","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:0d7e7bd8ea5008b9682695bcee77b8a11fcc94d737ff6d28e1b826470842473b","target":"record","created_at":"2026-05-17T23:39:29Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"fac30feb87ca61064dfbd1bcfdf83dc4aa76eb7ce4fe5bef19d4c1067092a51e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-07-26T06:38:26Z","title_canon_sha256":"8d80625a07678e9c925bb9f0032011a4d56894985e2ba1884a81abe4ccfee292"},"schema_version":"1.0","source":{"id":"1907.11395","kind":"arxiv","version":1}},"canonical_sha256":"ca6a589af69ae23bf256740abf902d64293976f09c1e7dd3b8df9fac9044e4d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca6a589af69ae23bf256740abf902d64293976f09c1e7dd3b8df9fac9044e4d1","first_computed_at":"2026-05-17T23:39:29.212336Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:29.212336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kmAQN2qaNQOQ0pV7AFyOWMLHQ1aGiYSEJmybGGjCsJxXsSgpL4l0E/q0NBCvyCb3ZOh/7iHlXi3U897HxmFgDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:29.212973Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.11395","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d7e7bd8ea5008b9682695bcee77b8a11fcc94d737ff6d28e1b826470842473b","sha256:ad408e36fe4a0954e491fec05ca8b51d2b667d9d0cd12e6255aa7b644a638c1f"],"state_sha256":"504816a62b572a0f5993641dfa06a32d99953e66b5122fb8ba918a1e4ba889df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X/FGuOees3fvLLtmY3mUnDNi4yJIZ20tni1+FsSMrn+oxmbyOzhyZ4O+/OLGcM5NDgiL0YwgHUhJzxy6ApayCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T20:11:08.622489Z","bundle_sha256":"a476d1bf09e7e829316d02ca5db9f0b15a1dd92bbdefaed32f5f224ae6eb75ad"}}